1 ; RUN: llc < %s -mcpu=atom -mtriple=i686-linux | FileCheck %s 2 3 define i32 @Test_get_quotient(i32 %a, i32 %b) nounwind { 4 ; CHECK-LABEL: Test_get_quotient: 5 ; CHECK: orl %ecx, %edx 6 ; CHECK-NEXT: testl $-256, %edx 7 ; CHECK-NEXT: je 8 ; CHECK: idivl 9 ; CHECK: ret 10 ; CHECK: divb 11 ; CHECK: ret 12 %result = sdiv i32 %a, %b 13 ret i32 %result 14 } 15 16 define i32 @Test_get_remainder(i32 %a, i32 %b) nounwind { 17 ; CHECK-LABEL: Test_get_remainder: 18 ; CHECK: orl %ecx, %edx 19 ; CHECK-NEXT: testl $-256, %edx 20 ; CHECK-NEXT: je 21 ; CHECK: idivl 22 ; CHECK: ret 23 ; CHECK: divb 24 ; CHECK: ret 25 %result = srem i32 %a, %b 26 ret i32 %result 27 } 28 29 define i32 @Test_get_quotient_and_remainder(i32 %a, i32 %b) nounwind { 30 ; CHECK-LABEL: Test_get_quotient_and_remainder: 31 ; CHECK: orl %ecx, %edx 32 ; CHECK-NEXT: testl $-256, %edx 33 ; CHECK-NEXT: je 34 ; CHECK: idivl 35 ; CHECK: divb 36 ; CHECK: addl 37 ; CHECK: ret 38 ; CHECK-NOT: idivl 39 ; CHECK-NOT: divb 40 %resultdiv = sdiv i32 %a, %b 41 %resultrem = srem i32 %a, %b 42 %result = add i32 %resultdiv, %resultrem 43 ret i32 %result 44 } 45 46 define i32 @Test_use_div_and_idiv(i32 %a, i32 %b) nounwind { 47 ; CHECK-LABEL: Test_use_div_and_idiv: 48 ; CHECK: idivl 49 ; CHECK: divb 50 ; CHECK: divl 51 ; CHECK: divb 52 ; CHECK: addl 53 ; CHECK: ret 54 %resultidiv = sdiv i32 %a, %b 55 %resultdiv = udiv i32 %a, %b 56 %result = add i32 %resultidiv, %resultdiv 57 ret i32 %result 58 } 59 60 define i32 @Test_use_div_imm_imm() nounwind { 61 ; CHECK-LABEL: Test_use_div_imm_imm: 62 ; CHECK: movl $64 63 %resultdiv = sdiv i32 256, 4 64 ret i32 %resultdiv 65 } 66 67 define i32 @Test_use_div_reg_imm(i32 %a) nounwind { 68 ; CHECK-LABEL: Test_use_div_reg_imm: 69 ; CHECK-NOT: test 70 ; CHECK-NOT: idiv 71 ; CHECK-NOT: divb 72 %resultdiv = sdiv i32 %a, 33 73 ret i32 %resultdiv 74 } 75 76 define i32 @Test_use_rem_reg_imm(i32 %a) nounwind { 77 ; CHECK-LABEL: Test_use_rem_reg_imm: 78 ; CHECK-NOT: test 79 ; CHECK-NOT: idiv 80 ; CHECK-NOT: divb 81 %resultrem = srem i32 %a, 33 82 ret i32 %resultrem 83 } 84 85 define i32 @Test_use_divrem_reg_imm(i32 %a) nounwind { 86 ; CHECK-LABEL: Test_use_divrem_reg_imm: 87 ; CHECK-NOT: test 88 ; CHECK-NOT: idiv 89 ; CHECK-NOT: divb 90 %resultdiv = sdiv i32 %a, 33 91 %resultrem = srem i32 %a, 33 92 %result = add i32 %resultdiv, %resultrem 93 ret i32 %result 94 } 95 96 define i32 @Test_use_div_imm_reg(i32 %a) nounwind { 97 ; CHECK-LABEL: Test_use_div_imm_reg: 98 ; CHECK: test 99 ; CHECK: idiv 100 ; CHECK: divb 101 %resultdiv = sdiv i32 4, %a 102 ret i32 %resultdiv 103 } 104 105 define i32 @Test_use_rem_imm_reg(i32 %a) nounwind { 106 ; CHECK-LABEL: Test_use_rem_imm_reg: 107 ; CHECK: test 108 ; CHECK: idiv 109 ; CHECK: divb 110 %resultdiv = sdiv i32 4, %a 111 ret i32 %resultdiv 112 } 113
